I'm trying to author a DVD, and I would like to sample some music from one of my AVI source files to use as menu background music. Are there are freeware tools to do this?
I use VirtualDub to split an AVI into its component parts. It also lets you re-combine them later if needed.
Take a look on the download section on www.doom9.org
Use AoA Audio Extractor.
Old thread but useful
It's free and a "must have" and does everything except cure STDs (although I must admit...I haven't RTFM from end to end)